I've been messing around a lot with multiplayer. Turns out I can actually run my own game project in the server of someone else. Example Suite crashes (because of some game file errors that can be fixed, most likely), but in theory you can enter a server where someone is playing Morrowind and play a whole different other game in that same server.

The server lua scripts place you into Pelagiad in Morrowind. But since there is no Pelagiad in my game, it just places me in the spot indicated in my Main script.